diff -up gtk+-3.8.4/gtk/gtktextattributes.h.multilib gtk+-3.8.4/gtk/gtktextattributes.h

--- gtk+-3.8.4/gtk/gtktextattributes.h.multilib	2013-11-01 11:37:48.770148541 -0400

+++ gtk+-3.8.4/gtk/gtktextattributes.h	2013-11-01 11:51:00.708693132 -0400

@@ -102,12 +102,10 @@ struct _GtkTextAppearance

   guint inside_selection : 1;

   guint is_text : 1;

-  GdkRGBA *rgba[2];

-

-#if (defined(__SIZEOF_INT__) && defined(__SIZEOF_POINTER__)) && (__SIZEOF_INT__ == __SIZEOF_POINTER__)

-  /* unusable, just for ABI compat */

-  guint padding[2];

-#endif

+  union {

+    GdkRGBA *rgba[2];

+    guint padding[4];

+  };

 };

 struct _GtkTextAttributes